
Students Guide to Information
Technology
Φ the customer file, containing customer details and records of
purchases and payments
# the supplier file, containing supplier details and records of
payments made
• the employee file, containing employee details.
In a large DP system, all these files may be linked, so that entries made
in the sales file, for example, can be used automatically to update the
customer file. In the case of an integrated factory, the DP system will
be linked to the manufacturing systems, so that customer orders are
automatically translated into instructions for the computer-controlled
manufacturing process.
Question
1 I ...